UNT Libraries Government Documents Department - 6 Matching Results

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Dredging-Machine

Description: Patent for "a dredger which shall in an improved manner co-operate with and utilize the current in removing accumulations from the bed of channels" (lines 13-17).
Date: December 24, 1889
Creator: Fletcher, William A.

Pump

Description: Patent for pump that has "a valve chest which is formed of a single casting removably mounted on the pump cylinder, and carrying all the valves of the pump."
Date: October 24, 1916
Creator: Black, Lee J.
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